Weather Alerts for California

Your Recent Locations:  Los Angeles, CA  
Current Alerts for Los Angeles, CA: Hydrologic Outlook Winter Weather Advisory

1. Winter Weather Advisory for: Los Angeles County Mountains excluding the Santa Monica Range; Santa Barbara County Mountains; Ventura County Mountains

2. Winter Weather Advisory for: Modoc County

3. Hydrologic Outlook for: Antelope Valley; Catalina and Santa Barbara Islands; Cuyama Valley; Los Angeles County Coast including Downtown Los Angeles; Los Angeles County Mountains excluding the Santa Monica Range; Los Angeles County San Fernando Valley; Los Angeles County San Gabriel Valley; San Luis Obispo County Central Coast; San Luis Obispo County Interior Valleys; San Luis Obispo County Mountains; Santa Barbara County Central Coast; Santa Barbara County Mountains; Santa Barbara County South Coast; Santa Clarita Valley; Santa Monica Mountains Recreational Area; Santa Ynez Valley; Ventura County Coast; Ventura County Coastal Valleys; Ventura County Interior Valleys; Ventura County Mountains

4. Winter Weather Advisory for: Riverside County Mountains; San Bernardino County Mountains; San Diego County Mountains

5. Freeze Warning for: Northeastern Mendocino Interior; Northwestern Mendocino Interior

6. Frost Advisory for: Northern Humboldt Coast; Southeastern Mendocino Interior; Southwestern Mendocino Interior

7. Wind Advisory for: Imperial County Southwest

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Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

Current U.S. National Radar

National Weather Forecast--Current

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Todays National Weather Map

National Weather Forecast for Tomorrow

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Tomorrows National Weather Map

North America Water Vapor (Moisture)

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North American Water Vapor Map

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Weather Topic: What are Fractus Clouds?

Home - Education - Cloud Types - Fractus Clouds

fractus clouds Next Topic: Hole Punch Clouds

A fractus cloud (scud) is a fragmented, tattered cloud which has likely been sheared off of another cloud. They are accessory clouds, meaning they develop from parent clouds, and are named in a way which describes the original cloud which contained them.

Fractus clouds which have originated from cumulus clouds are referred to as cumulus fractus, while fractus clouds which have originated from stratus clouds are referred to as stratus fractus. Under certain conditions a fractus cloud might merge with another cloud, or develop into a cumulus cloud, but usually a fractus cloud seen by itself will dissipate rapidly.

They are often observed on the leading and trailing edges of storm clouds, and are a display of wind activity.

Next Topic: Hole Punch Clouds

Weather Topic: What are Mammatus Clouds?

Home - Education - Cloud Types - Mammatus Clouds

mammatus clouds Next Topic: Shelf Clouds

A mammatus cloud is a cloud with a unique feature which resembles a web of pouches hanging along the base of the cloud.

In the United States, mammatus clouds tend to form in the warmer months, commonly in the Midwest and eastern regions.

While they usually form at the bottom of a cumulonimbis cloud, they can also form under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds warn that severe weather is close.

Next Topic: Shelf Clouds